414 results about "Optical instrument" patented technology

The invention relates to an additive manufacturing method and application of an aluminum-based silicon carbide composite material complex component, and the additive manufacturing method of the aluminum-based silicon carbide composite material complex component comprises the following steps: step 1, uniformly mixing silicon carbide powder and aluminum alloy powder, and drying; 2, establishing a structural model for the target part, and importing the structural model into selective laser melting forming equipment; thirdly, selective laser melting forming is conducted; fourthly, linear cutting and surface treatment are conducted; and fifthly, hot isostatic pressing treatment is conducted. The invention further provides application of the aluminum-based silicon carbide composite material complex component to precise structural components such as aviation structural components, guided missile and satellite components and optical instruments. According to the method, the problem of subsequent large-allowance removal of the aluminum-based silicon carbide composite material component is solved, the wettability between the aluminum alloy and the silicon carbide particles is improved, the mechanical property meets the application requirement, and the aluminum-based silicon carbide structural component with stable performance is obtained.

The invention relates to the technical field of intelligent precision calibration of optical instruments, in particular to a primary and secondary mirror calibration method based on a neural network algorithm, which comprises the following steps: step 1, synchronously acquiring multi-physics field coupling data of primary and secondary mirrors; step 2, constructing a dual-mode neural network model, wherein the dual-mode neural network model comprises a first model and a second model; 3, kinematics feasibility verification and dynamic optimization are carried out on the initial prediction value, specifically, a Lie group space parameterization method is adopted to avoid a rotation freedom degree singular point, and a platform reachable working space is adjusted through Jacobian matrix verification; and 4, driving a secondary mirror adjustment platform based on the optimized adjustment parameters, and triggering online incremental learning of the neural network model according to the actual wavefront residual error. Through innovative application of the neural network algorithm, multiple technical problems of a traditional optical system calibration method in an extreme environment and a high-frequency dynamic condition are solved, and the calibration precision, the real-time performance and the efficiency are improved through self-learning and self-adaptive capabilities.

A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.

The invention discloses a miniature camera and laser common-caliber optical system and a use method, and relates to the field of laser optical instruments. The problem that an existing multi-band common-caliber optical system cannot achieve integration, multi-functionalization and miniaturization at the same time is solved. The miniature camera and laser common-aperture optical system comprises a zoom optical lens group, a beam expanding telescope group, an electromagnetic galvanometer, a spectroscope, a fast reflecting mirror and a laser light source. The laser converging zoom optical lens group and the fine tracking imaging branch are respectively connected with the zoom cam lens cone and the fine tracking lens cone, the beam expanding telescope group is connected with the antenna frame, and the electromagnetic galvanometer, the spectroscope and the reflector are all connected with respective bases. The optical axis collinear coupling design is adopted among the components, it is ensured that a laser path and an image path are completely overlapped, and high-precision image guide striking control is achieved. The small mobile platform is suitable for industrial precision machining and rapid identification, high-precision tracking and laser precise striking of short-range dynamic targets.

An embodiment comprises: a base; a rotor disposed on the base; a ball member disposed between the base and the rotor; a magnet disposed on the rotor; a coil which is disposed on the base so as to face the magnet, and which rotates the rotor by means of interaction with the magnet; a blade part which is connected to the rotor and which has an opening that varies in size by means of the rotation of the rotor; and a first sensor and a second sensor for sensing the displacement of the rotor, wherein the magnet includes a curved surface protruding in the direction toward the coil, and the first sensor and the second sensor face the protruding curved surface of the magnet.

The invention provides a microscope automatic focusing method based on an end-to-end model, and relates to the technical field of optical instruments. The method comprises the following steps: shooting an image on a microscope glass slide through an image acquisition module, and carrying out image preprocessing through a gray histogram equalization algorithm; deploying an end-to-end neural network model at the cloud server, receiving the preprocessed image and predicting a first focusing position value; the first focusing position value is sent to an electric focusing module controlled by a stepping motor, and focusing is completed; and acquiring a second image, performing image preprocessing, predicting a second focusing position value by using the end-to-end neural network model, and sending a relative position between the second focusing position value and the first focusing position value to the electric focusing module to complete final automatic focusing. According to the method, the optimal focusing position is directly predicted from the microscopic image through the deep learning model, a traditional focusing scoring function or an image sequence analysis process is simplified, end-to-end efficient prediction is realized, and the focusing speed and precision are remarkably improved.

The invention discloses a space remote sensing target positioning optical system based on multi-aperture imaging and a calibration method, and relates to the field of remote sensing and aerospace imaging optical instruments. The contradiction that the large view field and high-resolution imaging requirements of a traditional single-aperture optical imaging system are difficult to consider at the same time is solved, accurate positioning of a target is achieved, and the intelligent requirement of a multi-aperture optical imaging system is met. The multi-aperture imaging space remote sensing target positioning sub-aperture imaging optical system comprises an electromagnetic galvanometer, a beam shrinkage telescope group, a fast reflecting mirror and a rear focus lens group. The beam shrinking telescope group is connected with the rear focus lens group through a fast reflecting mirror, and a light beam is connected with the imaging branch through an electromagnetic galvanometer. And after passing through the telescopic system, the imaging light beam is reflected by the fast reflecting mirror and then focused to the detector for imaging. The method is also suitable for a mobile platform for carrying out rapid positioning and high-precision capturing on a dynamic target in the fields of industrial precision machining and space remote sensing.

The invention discloses a method for obtaining human eye wavefront aberration and a human eye aberration measuring device, and relates to the technical field of optical instruments.The method for obtaining the human eye wavefront aberration is applied to a Hartmann sensor and comprises the steps that an actual slope matrix is obtained through calculation according to a wavefront light spot diagram obtained by the Hartmann sensor; multiplying the generalized inverse matrix of the standard slope matrix by the actual slope matrix to obtain a Zernike coefficient matrix; subtracting the actual slope matrix from the product of the standard slope matrix and the Zernike coefficient matrix to obtain a residual matrix; and updating the Zernike coefficient matrix according to the residual matrix until the residual matrix of the updated Zernike coefficient matrix is smaller than or equal to a preset value. Wherein the standard slope matrix is a matrix formed by wavefront slope of Zernike polynomial full-term superposition. According to the technical scheme provided by the invention, the accuracy of obtaining the wavefront aberration of the human eye can be improved.

The invention relates to the technical field of quantum sensing and optical instruments, and discloses an integrated scanning confocal microscope for diamond NV color center quantum sensing, which comprises a control module, an integrated circuit module, an integrated laser module and an integrated light path module, the control module is used for exciting a diamond NV color center, the integrated light path module realizes two-dimensional scanning of a laser beam on a sample focal plane through a galvanometer, an objective lens is used for collecting NV color center fluorescence, meanwhile, a single-photon counter and a camera are arranged, confocal detection and wide-field microscopic imaging are realized, and the integrated circuit module receives an instruction of the control module. The microscope can realize confocal scanning fluorescence imaging, optical detection magnetic resonance spectrum measurement and NV color center spin coherent control experiments, such as Rabian oscillation, Rahm, Haln echo and spin relaxation experiments, and provides comprehensive experimental ability for diamond NV color center quantum sensing.

The invention discloses an ultraviolet broadband large-view-field detection objective lens, and belongs to the technical field of optical instruments. In order to solve the problems that in the prior art, balance among short-wavelength, large-numerical-aperture, large-view-field and broadband detection is difficult to obtain, and meanwhile system complexity and manufacturing cost are considered, the invention provides an ultraviolet broadband large-view-field detection objective lens. Comprising a first lens group, a second lens group, a third lens group and a fourth lens group which are sequentially and coaxially arranged from an object plane, each lens group comprises a plurality of lenses, and the first lens group and the fourth lens group are variable lens groups. The method can simultaneously meet high requirements on resolution, detection range and detection efficiency, and is suitable for defect detection and quality control in the field of semiconductor wafer manufacturing.

The invention provides optical glass which is relatively high in hardness and relatively low in thermal expansion coefficient. The optical glass comprises the following components in percentage by weight: 1-10% of SiO2; 7%-18% of B2O3; 24 to 39 percent of La2O3; 4 to 17 percent of Gd2O3 and Y2O3; 8.5% to 20% of ZnO; 8.5% to 19% of Ta2O5; nb2O5: greater than 0% but less than or equal to 8%; wO3: 0.1 to 8%; zrO2: 0.5 to 10 percent; the ratio of WO3 to Li2O is 2.0 to 8.0, and the ratio of 10 * Li2O to ZrO2 is 1.3 to 10.0. Through reasonable component design, the optical glass has high refractive index, low dispersion, low thermal expansion coefficient and high hardness, and can be widely applied to high-performance optical instruments.

An Embodiment includes a stationary unit including a second circuit board, a moving unit including a first circuit board disposed on the second circuit board and an image sensor conductively connected to the first circuit board, and a support unit connecting the first circuit board and the second circuit board and configured to support the moving unit so as to be movable in a direction perpendicular to an optical axis direction, wherein the support unit includes an extension member that includes a plurality of wirings conductively connected to the second circuit board, and the support unit includes a bent region, and a width of a first wiring firstly closest to the bent region among the plurality of wirings is larger than a width of a second wiring secondly closest to the bent region among the plurality of wirings.

Provided is an optical instrument capable of obtaining desired polarization characteristics. The optical instrument is an optical instrument provided with a light source, an incident-side polarization element, a light modulation element, an exit-side first polarization element, and an exit-side second polarization element. The exit-side first polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The rotation angle of the transmission axis of the exit-side first polarization element with respect to the transmission axis of the incident-side polarization element is within ±8.5°. The exit-side second polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The convex portions are lattice-shaped convex portions extending in a predetermined direction. The lattice-shaped convex portions sequentially have a reflection layer, a dielectric layer, and an absorption layer from the transparent substrate side. The rotation angle of the absorption axis of the exit-side second polarization element with respect to the absorption axis of the incident-side polarization element is within ±0.7°.

The present application provides an optical glass, which contains, in terms of weight percentage, SiO2: 1-15%; B2O3: 2-18%; La2O3: 35-65%; Y2O3: 5-25%; ZrO2: 2-15%; Nb2O5: 1-15%; TiO2: 5-20%, and the refractive index n d of the optical glass is 1.96 or more. Through reasonable component design, the optical glass obtained by the present application has a desired refractive index and Abbe number, and has a lower density, meeting the lightweight use of optical instruments.

The invention discloses an orthogonal electric drive SMA wire imitated face-centered cubic lattice variable stiffness topological structure, and belongs to the technical field of variable stiffness structures. The whole structure is a cubic frame, is arranged in a face-centered cubic lattice mode, is of a tensegrity structure and achieves self-balance by means of prestress. The structure comprises 1 / 4 spherical nodes located at eight angular points, 1 / 2 spherical nodes located at six face centers, connecting rods and shape memory alloy wires which are orthogonally arranged along twelve edges. The length and the rigidity of each wire can be adjusted by controlling the electrifying current of each wire, so that the directional and continuous adjustment of the rigidity of the whole structure is realized. The magnets are embedded in the spherical nodes, adjacent units can be freely expanded in the X direction, the Y direction and the Z direction through face-to-face combination, and good modularization and reconfigurability are achieved. The invention has the advantages of light structure, simple and convenient control decoupling, expandable space, adjustable rigidity and the like, and can be applied to the fields of ship-borne equipment, industrial robots, optical instruments, rehabilitation assistive devices and the like.

The present application provides an optical glass, which contains, in terms of mole percentage, SiO2: 25-40%; B2O3: 1-8%; La2O3: 1-8%; BaO: 1-6%; CaO: 5-25%; Nb2O5: 5-15%; TiO2: 8-20%; Li2O: 1.5-15%. By containing appropriate amounts of SiO2 and alkali metal oxides and other components, the optical glass has excellent anti-crystallization performance; by containing high refractive index components such as Nb2O5 and TiO2, the optical glass has a relatively high refractive index; by reasonable component design, the glass has a relatively low relative partial dispersion.

The application discloses an optical instrument performance detection system and method based on multi-source data fusion analysis, and relates to the technical field of optical instrument detection, to solve the technical problem that in the prior art, the signal characteristics of environmental light interference and product defects are prone to confusion, and specifically, through the cooperative work of an instrument self-calibration module, a calibration evaluation unit, an environmental light interference detection unit and a health state prediction unit, a full-process intelligent detection system is constructed, the application of multi-source data fusion technology breaks through the limitation of traditional single data detection, multi-modal feature matching, time series data analysis, grid fine monitoring and other technologies improve the accuracy and comprehensiveness of detection, accurate differentiation of environmental light interference and product defects reduces misjudgment and missed judgment, and the proactive maintenance of the hardware health state reduces downtime loss.

The utility model relates to a shading film which adopts a layered structure and comprises a base material layer, an anti-precipitation layer, a plurality of ink layers and a matte layer, and tight combination and performance synergy among the layers are realized through an optimized coating process. The multi-layer ink layer is formed by superposing two or more ink sub-layers, each layer is prepared from shading ink with high shading performance, and the thickness is controlled within the range of 2-4 microns. The matte layer serves as the outermost layer and endows the shading film with the characteristics of low gloss and reflection resistance. The anti-precipitation layer, the ink layer and the matte layer are symmetrically arranged on the base material layer and are formed in the same coating mode, so that tight combination between layers is ensured, and the overall structural stability and optical performance of the shading film are improved. According to the design scheme of the shading film, preparation of the high-performance shading film is achieved through a layered structure and an optimized coating process, the shading film is suitable for camera lenses, optical instruments and various precise optical assemblies, interference of external stray light is effectively prevented, and imaging definition and contrast are improved.

The application discloses an eye fundus periphery aberration measuring device and relates to the technical field of optical instruments. The eye fundus periphery aberration measuring device comprises a mounting piece, a fog vision component and a measuring component. The mounting piece is in a bowl shape. The fog vision component is provided with a plurality of fog vision components, and the plurality of fog vision components are all mounted on the mounting piece and are used for projecting fog vision signals to the inside of the mounting piece in different directions. The measuring component is arranged outside the mounting piece. The mounting piece is provided with a measuring hole, and the measuring component is used for measuring the aberration of the eye fundus through the measuring hole. The technical scheme provided by the application enables the eye fundus periphery aberration measuring device to perform aberration measurement in a larger field of view angle range.

The invention discloses a miniaturized multi-dimensional adjustable parallel laser generating device, and relates to the technical field of optical instrument manufacturing and application. The combination of the lens and the reflector can effectively obtain multiple beams of high-precision parallel light; through the design of the adjusting knob, the mirror holder and the displacement table device on the mirror bracket, on the basis of minimizing the occupied space, any dimension adjustment in the X direction, the Y direction, the Z direction, the alpha angle direction, the beta angle direction and the gamma angle direction can be carried out, and the flexibility and the convenience of adjusting the optical device are improved. By the adoption of the improved design, operation is easy and flexible, the device is small and exquisite, space is saved, multi-dimensional adjustable high-parallelism multiple light beams can be obtained through a single laser beam, and high engineering practicability and operability are achieved.

The utility model discloses a femtosecond laser pulse width real -time monitoring device relates to optical instrument technical field, including main base plate, integral optical support module, integral optical support module is equipped with a plurality of, a plurality of integral optical support module is used for installing different optical elements, and optical elements include beam splitter, reflector, delay line and nonlinear crystal, and integral optical support module is vertically installed on main base plate through fixed peg, support stable clamping plate is formed with two clamping plates and is closed, and the round hole for clamping fixed peg is formed on support stable clamping plate, and both ends of support stable clamping plate are equipped with fixed hole, and the axial direction of fixed hole is perpendicular with the board face direction of support stable clamping plate, is used for further fixed integral optical support module group after clamping on main base plate. The utility model forms the door type frame structure through support stable clamping plate and makes a whole with a plurality of module, and the slight displacement and the shaking of each module top are restrained.

An embodiment comprises: a housing comprising side parts, a first corner part, a second corner part, a third corner part, and a fourth corner part, in which each of the first corner part, the second corner part, the third corner part and the fourth corner is disposed between two adjacent side parts; a bobbin disposed in the housing; a first coil disposed on an outer surface of the bobbin; first magnets disposed on the side parts of the housing; a first circuit board disposed on the first corner part and comprising a first pad, a second pad, a third pad, a fourth pad, a fifth pad and a sixth pad; a first location sensor disposed on the first circuit board and electrically connected to the first pad, the second pad, the third pad, the fourth pad, the fifth pad and the sixth pad; first, second, third and fourth upper springs disposed apart from each other on the housing; and first and second lower springs coupled to a lower portion of the housing, electrically connected with the first coil, and coupled to the fifth and sixth pads, wherein each of the first to fourth upper springs is coupled to a corresponding one of the first to fourth pads in the first corner part.

The utility model belongs to the technical field of optical instruments, and particularly relates to an optical tweezer optical path module and a cell optimization system. The optical tweezer optical path module comprises a supporting base, a laser head mounting seat and a multi-stage attenuation module. The laser head mounting seat is arranged on the supporting base and is used for mounting a laser emitting head for emitting laser; and the multi-stage attenuation module is arranged on the supporting base and comprises a plurality of reflection attenuation mirror groups which are arranged on the light path at intervals, and each reflection attenuation mirror group is used for attenuating the laser intensity and changing the laser direction. The optical tweezer optical path module provided by the utility model has a multi-attenuation mechanism, and a relatively large attenuation multiple range is easier to realize, so that laser power adjustment in a relatively large range is realized, the laser power dynamic adjustment capability is favorably improved, the laser intensity is finely controlled, and cells are not damaged when various cells are fixed through an optical trap formed by laser.

When an anti-reflective coating, conventionally applied to glass lenses, is applied to a plastic lens, the difference in thermal expansion between the plastic substrate and the anti-reflective coating causes significant expansion of the plastic substrate in high-temperature environments. This leads to a problem where the anti-reflective coating cannot keep up with the expansion of the substrate and is prone to fracture (cracking). Therefore, we aim to realize a new optical thin film that achieves both the desired optical properties and the suppression of crack formation. [Solution] The optical thin film of this disclosure includes one or more MO mixed layers (11) in which organometallic compounds are mixed within a layer formed by the physical deposition of magnesium fluoride.

The invention relates to the technical field of quantum sensing and optical instruments, and discloses integrated equipment for representing nitrogen vacancy color center quantum characteristics and sensing sensitivity, which comprises a laser module, an inverted optical microscope module, an electronic control and data acquisition module and a system software control module, the laser module realizes continuous laser beam output or pulse laser beam output through light path selection; the inverted optical microscope module receives the laser beam and collects the nitrogen vacancy color center of the sample, and selectively guides fluorescence to the confocal single photon counting branch or the analog signal detection branch through the light path selection mechanism; the electronic control and data acquisition module is responsible for driving each device and processing signals from different detection branches; and the system software control module cooperates with each module to execute quantum characteristic characterization and sensing sensitivity evaluation tasks. Through deep integration of software and hardware, dual-mode measurement is realized on a single platform, and the device has the advantages of high function integration level, compact structure, convenience in operation and high measurement efficiency.

Apparatuses, systems, and methods are disclosed for a camera lens to optical instrument connector. An apparatus includes a tab having a tab body comprising a first side, a second side, and an aperture, one or more magnets located within the tab body, and a means for connecting the first side to a device such that a camera lens of the device is aligned with the tab aperture. The apparatus includes an adapter having an adapter body comprising a first side, a second side, and an aperture, one or more magnets positioned within the adapter body, the one or more adapter magnets aligned with the one or more tab magnets for magnetically securing the tab to the adapter, and an adapter sidewall protruding along an axis perpendicular to an edge of the first side for securing the adapter onto an eyepiece of a lensed optical instrument.

The application discloses a kind of remotely controllable optical fiber test system and equipment, method, storage medium, it is related to optical instrument technical field.The optical fiber test system includes first optical fiber test equipment and second optical fiber test equipment, and the output port of first optical fiber test equipment is connected with the output port of second optical fiber test equipment between the optical fiber to be measured;Second control module in second optical fiber test equipment is used to send the first message that can close first laser module to first control module in first optical fiber test equipment when second laser module is detected by second laser module in second control module, and receive the second message that can open second laser module sent by first control module, and receive the third message sent by first control module when first laser module is detected by first laser module in first control module, and the third message includes the first optical power of first laser module.Using the system of the application can be conveniently detected, and processing efficiency is greatly improved.

The present invention discloses a method for splicing detectors with angled incidence, which belongs to the field of optical remote sensing technology and includes a focal panel assembly, a splicing base, and a splicing instrument. The focal panel assembly includes a focal plane substrate and three detectors and a grinding pad connected to the focal plane substrate. The splicing base is a high-rigidity, high-precision process tooling developed to achieve splicing of detectors with angled incidence; the splicing instrument is a core optical instrument for achieving high-precision splicing of the focal panel assembly, which can achieve high-precision three-dimensional translation and provide a high-precision fixed platform for the splicing base. The method for splicing detectors with angled incidence of the present invention is more adaptable to scenarios. On the basis of meeting the coplanarity of detector splicing, it can ensure that the entire image plane will not be blocked, and can realize the verification of the splicing effect through two angle detections, thereby improving the imaging effect.

The present application relates to the technical field of optical instruments, and discloses a microscope objective, which is suitable for at least a temperature environment of 50K to 150K and comprises: a front group unit, which comprises at least a first lens and a second lens arranged in sequence along an optical path, and is suitable for converging light rays and correcting spherical aberration; a middle group unit, which is arranged on the rear side of the optical path of the front group unit, comprises at least a first middle group and a second middle group, and is arranged in sequence along the optical path, each middle group is provided with at least two lenses arranged at intervals, and is suitable for correcting chromatic aberration; and a rear group unit, which is arranged on the rear side of the optical path of the middle group unit and comprises at least two lenses arranged at intervals; each lens contained in the front group unit, the middle group unit and the rear group unit is a single lens. By arranging each lens as a single lens, the combination connection of each unit and the whole microscope objective is avoided, the problems of damage, falling or air leakage in an extreme environment such as low temperature are avoided, and the application in a low-temperature environment is met.

The present invention relates to a device (1) for reducing a particle density of a sample of a suspension of particles in a liquid, the device comprising a measurement flow path (13) for characterizing the sample of the suspension, wherein the device (1) is configured to withdraw a sample of the suspension residing in a main vessel (100), and to dilute the sample, particularly when a measure indicative of the particle density in the sample is above a pre-defined threshold.